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#ifndef __JE_AUDIO_SDL_H__
#define __JE_AUDIO_SDL_H__
#include "../../core/configuration.h"
#if defined(jin_audio) && (jin_audio == jin_audio_sdl)
#include <vector>
#include "../audio_manager.h"
#include "sdl_source.h"
namespace JinEngine
{
namespace Audio
{
namespace SDL
{
#define SDLAUDIO_BITDEPTH 16
#define SDLAUDIO_BYTEDEPTH (SDLAUDIO_BITDEPTH >> 3)
#define SDLAUDIO_CHANNELS 2
///
/// Audio system SDL implementation.
///
class SDLAudio : public AudioManager<SDLAudio>
{
public:
///
/// SDL audio setting.
///
struct Setting : SettingBase
{
public:
int samplerate; // Ƶ
int samples; // sample<=samplerate
};
///
/// SDL audio constructor.
///
SDLAudio() {};
///
/// SDL audio destructor.
///
~SDLAudio() {};
///
/// Play all sources whose state is playing.
///
void play() override;
///
/// Stop and remove all sources from the queue.
///
void stop() override;
///
/// Pause audio.
///
void pause() override;
///
/// Resume audio.
///
void resume() override;
///
/// Set global audio volume.
///
void setVolume(float volume) override;
///
/// Process all commands in the queue.
///
void processCommands();
///
/// Process all sources.
///
/// @param buffer Source buffer.
/// @param len Source length.
///
void processSources(void* buffer, size_t len);
///
/// Process audio buffer.
///
/// @param buffer Audio stream buffer.
/// @param len Length of stream buffer.
///
void processBuffer(void* buffer, size_t len);
///
/// Goon process.
///
/// @return True if sucessful, otherwise return false.
///
bool goOnProcess();
///
/// Lock audio device.
///
void lock();
///
/// Unlock audio device.
///
void unlock();
private:
///
/// Initialize audio system.
///
/// @param setting Audio setting.
///
bool startSystem(const SettingBase* setting) override;
///
/// Quit audio system.
///
void quitSystem() override;
// Audio device id.
unsigned int audioDevice;
};
} // namespace SDL
} // namespace Audio
} // namespace JinEngine
#endif // (jin_audio) && (jin_audio == jin_audio_sdl)
#endif // __JE_AUDIO_SDL_H__
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